Nut-lock.



A. C. ROSENBRGOK.

NUT LUCK.

APPLICATION FILED SEPI. I2, 1912.

AUGUST C. ROSENBROOK, OF WALL, SOUTH DAKTA.

NUT-LOCK.

1 ,illude/Hlt?.

Specification of Letters Patent.

latented May tl, 191

Application led September 12, 1912. Serial No. 720,008.

To NZZ y'whom 'it may concern.'

Be it known that I, AUGUST C. Rosenmzooit, a citiz'en of the United States, residing,y at lVail, in the county ot Pennington, State of South Dakota, have invented certain new and useful Improvements in Nut -Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates t improvements in nut locks.

The principal object of the invention is to provide a novel means for looking; a nut upon a bolt whereby said nut will be prevented Jfrom becoming accidentally loosened.

Another object of the invention is to provide a nat lock which includes a locking member adapted upon screwing home ot the nut to tightly engage both the bolt and nut and thereby prevent the latter from beco1ning,l accidentally loosened.

A further object of the invention is to provide a nut and locking member -ivhich may be readily applied to any bolt ot a size to be engaged by said nut without altering the construction ot the bolt in any par tieular.

A still further object of the invention is to provide a nnt lock ot the character described which is extremely simple in construction, it being composed of a niinin'inni number of parte, and is thereime wheap to manufacture.

lli/'ith these and other objects in View, the invention consists in the construction and novel combination ol parts hereinafter' tullv described, illustrated in the aceoinpanyinf; drawingA and pointed out inthe claim hereto appended; it being understood that various changes in the torni, lia-oportion, and minor details of construt-,tiou within the scope olf the claim may be resorted to without departing from the f'wirit or sacriiicing anT of the advantages ot alie invention.

In the drawing: l `ignre 1 is a side elevation showing the applii'eation oi. a nut lock constructed in accordance with my invention, and showingr the lockinpginember in its inoperative position,` Fig. 2 is a cross sectional view taken on the line v3-2 ot Fig. l, Fig. 3 is a longitudinal sectional View showing the parts in their operative positions, the bolt being shown in elevation, Fig. l is new and useful :i cross sectional. view taken on the line -l----l ot' Fig. 3, Fig. 5 is a plan view of the lockingK ring', and Fig. 6 is a detail cross sectional view taken on the line @#6 of Fig.

Like reference numerals designate corresponding' parts in.all the figures of the drawing.

Referring` to the drawing, 5 and 6 designate a pair of opposed inner and outer plates which are respectivelyv 'formed with aline-d openings for receiving the threaded shank 7 ot' a bolt S. A nut 9 is formed with a threaded bore 10 for engagement with the shank 7 ot the bolt, and the inner tace ot thisA nut is formed With a counterborell which forms a resultant pocket. rlhe peri phcral Wall 12 of said eennterbore is an ranged parallel with the longitudinal axis of the bore 10 ot the nut, and the end Wall 13 ot said counterbore arranged at an obtuse angle to the peripheral wall 1Q. ln order to lock the nut t) to the bolt, there is provided a split ring 14 'which is formed from spring metal. This ring; is snbstantially triangular in cross section and ifncl'udes a fiat 15, a tlat inner tace 16, the latter being arranged at right. angles to the former.I and a beveled outer face 17. The ends 1S and 19 of the ring` diverge entwai-diy throughout the beveled tace 1T and diverge inwardly througl'iont the unbeveled pori ion ot the outer tace, rlhe inner portion olf the end 18 oppositel'vbeveled. at l8r-m 1S to form a resultant inn/'ai .y extending point 18h, said point beingdisposed within and in spaced relation to th. inner periphery or inner tace 16 oit said ring. The outer portion ot' the end 1) terminates in a point ltrL which is disposed beyond the outer periphc "jy of said ring.

ln practice the ring' 14 is p tioned upon the threaded shank i of the bolt 8 so that the base 15 will be dispof-sed against the outer plate. G, The nut l) is then screw-id onto the shank 7 so that the pocket formed by the counterbore 11 will receive the ring 141-. lt will be observed that the width of the ring' 14 is such that the inner tace 1G thereof willy rest upon two or more adjacent threads et the vshank' 7, and that the point 18 will enf-- tend imvardly betweenan adjacent pair ot threads while the point 19 of said ring will be disposed beyond the peripheral wall 12 ot' said counter-bore 1l. Upon rotation ot the nut i) io the iliroper direction the end.

`19EL firmly engages the Wall 13 ofthe eounterbore will engage the beveled face 17 of the ring, and as a result, the point 18b will. be forced into engagement with the 'shank 7 of the bolt 8. This will hold the ring 14 against rotation so that upon further rotation of the nut 9 the inner Aface lof said nut Will rideover the inclinedv yface 17 of the ring and compress the latter 4.until the point 19*1 has been drawn into and yengaged with the peripheral Wall 12 of the It will thus be observed gages the shank 7 of the bolt and the point eripheral Wall 12 of. the nut 9 and there y 'locks said nut against accidental reverse rotation and convsequent displacement.

What is claimed is:

A. nut leek comprising a split ring having Wartlly by retrograde turning of the nut and penetrate-the nut radially with respect to said ring.

1n testimony whereof, I my signature, in presence of two Witnesses.

AUGUST C. RUSENBROOK. Witnesses KARL LUM,

S. E. SANDERS. 

